CASSOPOLIS, MI – A Cass County jury found a 57-year-old Dowagiac man guilty Thursday of multiple charges, including child sexual abusive activity involving a 17-year-old girl, the manufacture of marijuana and five gun charges, according to a release from the Cass County prosecutor's office.

The girlfriend of James Heidenreich contacted Michigan State Police in July when she discovered a digitally recorded disc in Heidenreich’s jacket. The secretly recorded video showed a 17-year-old family friend disrobing before using the shower in Heidenreich’s master bathroom, according to trial testimony. Heidenreich was seen on tape before and afterward working the recorder.

Heidenreich's girlfriend, a 47-year-old Dowagiac woman, came across more video footage of Heidenreich setting up a hidden camera in her daughter's bedroom.

Michigan State Police arrested Heidenreich July 18 and obtained a warrant to search his house. During the search, troopers found guns in the house and four marijuana plants in a pole barn on the property.

Heidenreich testified in court that he did not set up the camera to secretly film an underage girl. He also said he knew of the firearms and marijuana plants on the property but denied responsibility for growing the plants.

The jury, after three hours of deliberation, found Heidenreich guilty of child sexually abusive activity, eavesdropping, possession of child sexually abusive material, manufacture of marijuana, maintaining a drug house and five counts of felony use of a firearm. The jury also found him guilty of an additional misdemeanor count of possession of marijuana, according to the Cass County prosecutor's office.

“This defendant committed reprehensible acts against a child, his family and society. But he cannot hide from these crimes,” Cass County Prosecutor Victor Fitz said in a press release.

Heidenreich faces up to 20 years in prison for possession of child sexually abusive material. The sentence will be served consecutively with a mandatory two-year sentence on the felony gun convictions.

Heidenreich is currently free on $50,000 cash/surety bond, Cass County Assistant Prosecutor Tiffany Vohwinkle said. He's scheduled to be back in court Feb. 1 for sentencing.